redefining field experts'
relation to technology
This portfolio is built on deep industry expertise, rigorous technical execution, and the discipline to be held accountable for both. That discipline means keeping pace with what each project needs to become, and not letting humans or systems drift from it.
High-stakes engineering methodologies are applied to ensure simplicity and absolute reliability. AI is used to raise the bar of what software can achieve, not as a shortcut or a simple cost reducer.
Internal R&D focus
Current operations are strictly focused on internal R&D, meaning general market development services are unavailable. However, we're always open for a chat with fellow innovators and industry experts.
Portfolio · 2014 — nowCase Studies
Language mastery engine
Exam practice that forces recall instead of recognition. Open-answer exercises such as sentence transformations and gap fills are validated against every accepted phrasing, contraction and word order, not just multiple choice. Verification is efficient: checking an answer requires no neural network. Every mistake is explained, and progress is tracked per grammar concept and vocabulary topic.
i-Speak English Practice
B2C
Live
i-Speak English Practice, in partnership with the i-Speak English brand. Learners buy direct: free tier, €12.99/month.
engprep.co.uk
B2B
Launching soon
engprep.co.uk, a new brand for teachers and schools. Assign, auto-mark, report mastery by topic. Teacher and school tiers.
Finalized intra-European transfer project and officially operating as a Spanish company.
Narrowed focus to R&D of B2B SaaS solutions, specifically redefining field experts' relation to technology.
A video ad server platform that became a major player in the CEE ad tech market. It was sold to R2B2.
Caroda
A bootstrapped video ad server built from zero as technical co-founder. Market leader in the Czech Republic and Slovakia, upcoming in Romania, with customers worldwide. It unified direct and programmatic demand for publishers. In a market where advertiser and publisher interests often pull in opposite directions, Caroda raised quality for both by optimising on users' behaviour over time rather than on page views alone. Its Multiformat Carousel let publishers grow revenue despite declining traffic; BurdaMedia Extra reported over 50% more out-stream volume.
Czech Republic: TV Nova, Mafra, CNN Prima News, Spirit Media. Slovakia: Zoznam. Romania: PRO TV, BurdaMedia Extra. Also Bauer Media Group, bTV Media Group and major brands worldwide. Acquired by R2B2 in February 2025.
Shifted focus to building a proprietary IP portfolio spanning programmatic advertising, digital forensics, and microscopy image analysis.
Founded in Prague, Czechia. Initially built custom software used by customers such as banks and Fortune 500 companies.